From patchwork Mon Mar 18 19:14:28 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: srinivas pandruvada X-Patchwork-Id: 10858409 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 675106C2 for ; Mon, 18 Mar 2019 19:15:36 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 4DDD928E13 for ; Mon, 18 Mar 2019 19:15:36 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 3DD8B28DDF; Mon, 18 Mar 2019 19:15:36 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id C254128EB9 for ; Mon, 18 Mar 2019 19:15:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726728AbfCRTP3 (ORCPT ); Mon, 18 Mar 2019 15:15:29 -0400 Received: from mga05.intel.com ([192.55.52.43]:54512 "EHLO mga05.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727485AbfCRTPH (ORCPT ); Mon, 18 Mar 2019 15:15:07 -0400 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by fmsmga105.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 18 Mar 2019 12:15:07 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.58,494,1544515200"; d="scan'208";a="156107038" Received: from spandruv-desk.jf.intel.com ([10.54.75.31]) by fmsmga001.fm.intel.com with ESMTP; 18 Mar 2019 12:15:05 -0700 From: Srinivas Pandruvada To: jikos@kernel.org, benjamin.tissoires@redhat.com Cc: linux-input@vger.kernel.org, linux-kernel@vger.kernel.org, Srinivas Pandruvada Subject: [PATCH v2 10/10] HID: intel-ish-hid: Add interface function for PCI device pointer Date: Mon, 18 Mar 2019 12:14:28 -0700 Message-Id: <20190318191428.6527-11-srinivas.pandruvada@linux.intel.com> X-Mailer: git-send-email 2.17.2 In-Reply-To: <20190318191428.6527-1-srinivas.pandruvada@linux.intel.com> References: <20190318191428.6527-1-srinivas.pandruvada@linux.intel.com> Sender: linux-input-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-input@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Instead of directly accessing PCI device poitner via struct ishtp_cl, create interface function for same. This is required for DMA transfer. Signed-off-by: Srinivas Pandruvada --- drivers/hid/intel-ish-hid/ishtp/bus.c | 13 +++++++++++++ include/linux/intel-ish-client-if.h | 2 ++ 2 files changed, 15 insertions(+) diff --git a/drivers/hid/intel-ish-hid/ishtp/bus.c b/drivers/hid/intel-ish-hid/ishtp/bus.c index 66a485a41481..fb8ca12955b4 100644 --- a/drivers/hid/intel-ish-hid/ishtp/bus.c +++ b/drivers/hid/intel-ish-hid/ishtp/bus.c @@ -855,6 +855,19 @@ struct device *ishtp_device(struct ishtp_cl_device *device) } EXPORT_SYMBOL(ishtp_device); +/** + * ishtp_get_pci_device() - Return PCI device dev pointer + * This interface is used to return PCI device pointer + * from ishtp_cl_device instance. + * + * Return: device *. + */ +struct device *ishtp_get_pci_device(struct ishtp_cl_device *device) +{ + return device->ishtp_dev->devc; +} +EXPORT_SYMBOL(ishtp_get_pci_device); + /** * ishtp_trace_callback() - Return trace callback * diff --git a/include/linux/intel-ish-client-if.h b/include/linux/intel-ish-client-if.h index e98bfbb1e07e..16255c2ca2f4 100644 --- a/include/linux/intel-ish-client-if.h +++ b/include/linux/intel-ish-client-if.h @@ -77,6 +77,8 @@ int ishtp_register_event_cb(struct ishtp_cl_device *device, struct device *ishtp_device(struct ishtp_cl_device *cl_device); /* Trace interface for clients */ void *ishtp_trace_callback(struct ishtp_cl_device *cl_device); +/* Get device pointer of PCI device for DMA acces */ +struct device *ishtp_get_pci_device(struct ishtp_cl_device *cl_device); struct ishtp_cl *ishtp_cl_allocate(struct ishtp_cl_device *cl_device); void ishtp_cl_free(struct ishtp_cl *cl);